Speed-regulator for automobile-fans.



' 0,1. DE LAY. SPEED REGULATOR FOR AUTOMOBILE FANS.

APPLICATION FILED JAN. 6, i915.

Patented Aug. 1, 1916.

UNITED STATES PATENT o o cnannns .r. DELAY, or omhna, n'nnnasxn.

SPEED-REGULATOR ron. An'romomLE-rairs.

Specification of Letters Patent.

I Patented Aug. 1, 191d.

Applieati on filed January 6, 1915." Serial No. 809;

To all whom it may concern.-

Be it known that I, CHARLES J. Dn Lav,

'a citizen of the United States, residing at Omaha, in the county ofDouglas and State of Nebraska, have invented certain new and usefulImprovements in Speed-Regulators for Automobile-Fans,'of which thefollowing is a specification.

This invention relates to a speed regulator for automobile fans, and hasfor one of its objects to provide means which will operate automaticallyto increase the speed of the fan when the contents of the water jacketbecome unduly heated and to decrease the movement of the fan when thetemperature is reduced.

The invention also has reference to automatic means for increasing ordecreasing the speed of the oil pump for lubricating the cylinders ofthe engine.

, With these objects in view the invention presents a novelconstruction, combination and arrangement of parts as described hereinand claimed, and as illustrated in the drawing, wherein,'-

F gure 1 IS a vlew 1n slde elevatlon show- Y ing'a part of an engine anda fan for a radiator with the speed regulator applied, parts beingbroken away and in section. Fig. 2

is a view in longitudinal section of a tubular receptacle or thermostat,with adjustable devices. F ig. 3 is a view of a' disk and frictidnWheel, to show relative position of parts. a Referring now to thedrawing, numeral 1 indicates a fan generally used for cooling theradiator (not shown) vof an automobile,

and it is obvious that in extreme cold weather it is not generallynecessary that the fan should be rotated'at a'high degree of and that arapid movement for the fan is then required."

To provide-a suitable degree of rotation for the fan, certain devicesare" employed,

consisting in vpart of a disk 2, said disk' and fan being keyed andslidable on: the horizontal shaft. 3. At'is indicated anoperating shaftdisposed at right angles to shaft 3and' which carries a contact .wheel 5frictionally; I V

-28 fulcrumed ona' suitablejbracket'29,'the;1=10

arm b of said rock lever being 'engaged by engaging the face ofdisk 2.

At 6 is indicateda sleeve provided with a bevel pinion 7 which engagesthe bevel pintemperature .of the circulating ion 8 of the engine shaft9, being slidably mounted and keyed orsplined in the sleeve. As thusdescribed the sleeve, together with shaft 4, will rotate at a speedcorresponding to that of the engine shaft, and by means of the spring 10bearing on the hub of the fan, the disk and fan will be adequatelpressed inwardly upon shaft 3', the dis being pressed against said wheelso that a rotatable movement of said disk and fan will be imparted bysaid contact. It is obvious that if wheel 15 engages near the peripheryof. the disk that therotation of the fan will be comparatively slowregardless of the degree of rotation of the engine shaft, and if theshaft l is moved longitudinally to dispose wheel 5 near the axis of thedisk, the rotatable movement of the fan will be increased. 7 v f ,Inorder that the wheel-5 may have a movement toward the axis of the diskor outwardly. of said axis, a thermostat 11.is'-em ployed, preferablyconsisting of the. tubularreceipltacle 12 mounted in the water jacket orcha ber' 13 of the casing 14- for the engine cylinders where it, will beexposed to the' I quid or contents of said chamber. The tube is partlyfilled with mercury 15 or other'suitable expansible'element, anda-pis'ton 16 with piston rod17 works therein, a spring 18 being alsoemployed anddispos'ed in the tube to normally resist saidexpansion.Threaded in the head 19 of the tube is a sleeve 20 provided with abutter 21 engaging one endof spring 18, the. opposite end off-saidspring engaging the piston, and by use. of the thumb piece 22 the sleevemay befrotated for adjusting the tension of the spring, At 23- is asecond sleeve threaded on the-piston ,rod near its outer end, thissleeve being-provided with an annular groove 24, and by use of j thethumb piece 25 this sleevermay be ad:

justed longitudinallyof the piston rod: {-At 160 1 26 is indicated alever having its upper end f I loosely mounted in the groove .24, .Byex.-

pansion of the mercurydue to the heat of thejwater. jacket and contents,the-piston will be moved outwardly with su'flicient force't'o' 105compress the spring and to swing-"the. lever 26 which. is fulcrumedbetween its ends as.

indicated at.27,' the inner e d f said lever 1' I being mounted on arm aof the rock lever,

the pin or lug aof the shame J i From the description, operation will bereadily understood, it being'necessary only to state that, by use of theadjustable devices mentioned, the swinging movements of the lever 26 maybe under control for causing a vertical movement of shaft l fordisposing the contact wheel 5 nearer to or farther from the axis of disk2, and by means of this control the fan may be rotated at a suitablespeed, independent of the speed of the engine shaft, for regulating thedegree of the temperature of the contents of the water jacket.

At 30 is indicated an oil pump. The hub of the disk provides a chainsprocket d. A chain, indicated at 31 is mounted upon the chain sprocket(Z and upon the chainsprocket 32, the shaft of the latter being adaptedto actuate the oil pump, it being understood that any suitable pipe (notshown) connects said pump with the engine cylinders. In the operation ofthis pump, which supplies oil to the cylinders, the

quantity thus supplied should at all times be in proportion to thedegree of heat or temperature of the water jacket, and not in proportionto the rotation or speed of the engine shaft, and the automatic meansalready described provides an automatic control for said supply of oil.

What I claim and desire to secure by Letters Patent is,

In combination with the engine shaft and water jacket of the engine, afan arranged for rotation and provided axially with a disk, a shaftdisposed at right angles to the axis of the fan and provided with asecond disk normally in engagement with the first named disk, a sleeverotatable by the engine shaft and splined on the vertical shaft, a rocklever in engagement with the vertical shaft for moving the second diskradially of the first named disk by its swinging movements, a tubularreceptacle in the water jacket, a piston within the receptacle, anexpansive element in the receptacle for moving the piston in an oppositedirection, and a second rock lever movable by the piston for causingswinging movements of the first named rock lever. 1

In testimony whereof, I have afiixed my signature in presence of twoWitnesses.

- CHARLES J. DE LAY.

Witnesses:

HIRAM A. STURGES, JOHN W. BATTIN.

